16256457547 has 4 divisors (see below), whose sum is σ = 17734317336. Its totient is φ = 14778597760.

The previous prime is 16256457541. The next prime is 16256457557. The reversal of 16256457547 is 74575465261.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16256457547 - 2³¹ = 14108973899 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16256457494 and 16256457503.

It is not an unprimeable number, because it can be changed into a prime (16256457541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 738929878 + ... + 738929899.

It is an arithmetic number, because the mean of its divisors is an integer number (4433579334).

Almost surely, 2^16256457547 is an apocalyptic number.

16256457547 is a deficient number, since it is larger than the sum of its proper divisors (1477859789).

16256457547 is a wasteful number, since it uses less digits than its factorization.

16256457547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1477859788.

The product of its digits is 7056000, while the sum is 52.

The spelling of 16256457547 in words is "sixteen billion, two hundred fifty-six million, four hundred fifty-seven thousand, five hundred forty-seven".